The RYOBI Bucket Top Wet/Dry Filter Bags (4-Pack) filter out dry debris during use to protect the vacuum motor. The included rubber bands ensure a secure fitment on the vacuum. Replace your filter bags when wear and tear is noticeable for optimal vacuum performance. These Bucket Top Wet/Dry Filter Bags are compatible with the RYOBI 18V Bucket Top Wet/Dry Vacuum (PCL732).